Hinge for windows



F. GRONMAN.

HINGE FOR WINDOWS.

APPLICATION mm Aumz. 1920.

Patented May M, 1921.

BRAINS G-RfiNIvIAN, OF INWOOD, NEW YORK.

HINGE FOB WINDOWS.

Specification of Letters la'tcn't.

Patented May it, 31%251.

Application filed August 12, 1920. Serial No. 403,036.

To all whom it may concern:

Be it known that l, FRANS GRoNMAN, a citizen of the United States, residing at Inwood, in the county of Nassau and State of New York, have invented certain new and useful improvements in Hinges for Windows, of which the following is a specification.

This invention relates to hinges for windows, and more particularly to a horizontally swinging window which, when closed, is in a locked position; and the object is to provide a cooperating lifting arrangement or rried wholly by the window frame,

whereby the window may be lifted to a position above the window sill which acts to f ee the window for horizontal movement by unlocking the hinges thereof to permit the window to swing inwardly, thereupon.

in the accompanying drawings Figure l is a plan view;

F g. 2 is a horizontal section on line 2-2 of .Fig. 1.;

Fig. 8 is a detail.

1, indicates the window-sash; 2, the window-frame; and 3, the window-sill. 4, 4, indicate the hinges whichsecure the windowsash to the window-frame. These hinges preferably consist of members 4: and 5, the member f being secured to the window frame, and provided at its outer end with open supporting knuckles 6, 6, while the member 5 is secured to the windowsash, and is provided with a single open knuckle 7, which is received between the open knuckles (5, 6, of the member 4;, said openings receiving a pintle or bolt 8 serving as the pivotal point of the window. The lower knuckle 6 of the member lis cut away as at 9 on its upper face, while the knuckle 7 is cut away as at 10 on its lower face. The two members overlap to lock the window when in a closed position.

11, 11, indicate a lifting lever which is pivotally mounted transversely of the window-frame, the inner end thereof being provided with an arm 12 which extends horizontally through the openings 13 and 14 in the lower hinged members 4- and 5, said arm 12 being actuated by an arm or handle 15 to lift the window vertically to clear the sill 16 of the window and disengage the locking portions of the hinged members e and 5 to permit the window being swung inwardly when being opened.

When the window is closed, it automatically drops to the lower position, causing the hinges to assume their locked position, as previously disclosed.

The vertical meeting faces of the interlocking hinge portions are preferably at a slight angle, which causes the window when dropping to its lowermost position to be wedged or pressed against the frame and tightly held, thereby preventing any rattling of the window and at the same time insuring a tight fit to exclude rain or wind.

It will thus be seen that I have provided a lifting device for a window sash, which is carried solely by the window frame, being of such a construction that the entire weight of the window when bein swung open is supported by the hinges, and not the lifting device. Furthermore, owing to the weighted end of the handle, the lifting device after the window is once opened, always assumes a. position adapted to register with the opening in the window-sill, said lifting device in no wise affecting the locking effect of the hinges when the window is closed.

I claim:

l. The combination with a window frame, of a vertically movable window sash having a lateral. recess in an edge thereof, hinge elements pivotally connecting them, means for locking the sash when in a lowered position, and means for raising the window for unlocking it and permitting it to swing on the hinges comprising a pivoted lever mounted in the frame, and adapted to extend into the recess in the sash when the sash is closed, and arranged to raise the sash upon actuation of one end of the lever, and to be withdrawn from the recess when the sash is open, said lever so balanced as to reenter the recess as the sash is closed.

2. In combination with a window frame and sash hinged together, said hinge adapted to be locked against movement when the window is closed, and a lifting lever pivotally mounted in said window frame, one end being in engagement with the window-sash when closed, the opposite end extending externally of the window-sash, whereby the window may be lifted and the hinged member disengaged to permit the window to swing upon its hinges.

3. In combination with a window-frame and sash hinged together, said hinge consisting of alined knuckles provided with openings adapted to receive a pintle, the edges of the abutting knuckles of said hinged members cut away on opposite sides to cause the hinged member carried by the window to nest with the members carried by the sash in such a manner as to lock the window in a closed position, and a lifting lever pivoted for horizontal movement transversely of the window-frame, an arm extending horizontally therefrom and adapted to be received in an opening in the window-sash when the window is closed, the op posite end extending externally of the window-sash, whereby the window may be lifted and the hinged members disengaged to permit the window to swing open.

4L. The combination with a window frame, of a window-sash hinge elements connecting the sash to the frame and normally locked against swinging movement, the hinge ele ments so arranged as to permit of a limited vertical movement of the sash to unlock the hinge elements to permit the sash to swing open, one edge of the sash being provided with a' lateral recess and a pivoted lever mounted in the frame and extending into said recess when the window is closed, ar ranged to raise the window to unlock the hinges and to be withdrawn from the re cess when the sash swings open and so balanced to be in position to enter the recess as the sash swings aside.

5, The combination with a window-sash, of hinge elements pivotally connecting them, one hinge element composed of a vertical stop and a bearing knuckle cut away substantially vertically to form a lateral stop and upper and lower bearing surfaces, the other hinge element comprising a knuckle having upper and lower bearing surfaces and cut away substantially vertically to form a lateral stop to lock the two hinge elements against swinging movement, the upper bearing surface of said last-mentioned knuckle adapted to strike the vertical stop to bring the lower bearing surface in line with the upper edge of said first bearingknuckle when the sash is raised to support the sash as it swings about its pivot, and means to raise the sash and one of the hinge elements therewith.

6. The combination with a window-sash, of hinge elements pivotally connecting them, one hinge element composed of a vertical stop and a bearing knuckle cut away substantially vertically to form a lateral stop and upper and lower bearing surfaces, the other hinge element comprising a knuckle having upper and lower bearing surfaces and cut away substantially vertically to form a lateral stop to lock the two hinge elements against swinging movement, the upper bearing surface of said last-mentioned knuckle adapted to strikes the vertical stop to bring the lower bearing surface in line with the upper edge of said firstbearing-knuckre when the sash is raised to support the sash as it swings about its pivot, and means to raise the sash and one of the hinge elements therewith, said means comprising a pivoted lever mounted in the frame adapted to enter a recess in an edge of the sash arranged to raise the window upon the actuation of one end of the lever, to be withdrawn from the recess when the window is opened, and to re-enter the recess as the window is closed.

In testimony whereof I anix my signature.

FRANS GRONMAN. 

